Publication
Title
Electric field tuning of the optical excitonic Aharonov-Bohm effect in nanodots grown by droplet epitaxy
Author
Abstract
Neutral excitons in axially symmetric GaAs nanodots embedded in an (Al, Ga) As matrix, which are formed by the droplet epitaxy technique, are investigated theoretically. An electric field perpendicular to the nanodot base results in both a vertical and an in-plane exciton polarization, which is beneficial for the appearance of the excitonic Aharonov-Bohm effect. In the range of low magnetic fields (below 5 Tesla), we found that the bright and dark exciton states can cross twice. This results in oscillations of the photoluminescence intensity with magnetic field, which are a striking manifestation of the optical excitonic Aharonov-Bohm effect.
Language
English
Source (journal)
Physica scripta. - Stockholm
Publication
Stockholm : 2013
ISSN
0031-8949
Volume/pages
T157(2013), 5 p.
Article Reference
014002
ISI
000332504600003
Medium
E-only publicatie
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
External links
Web of Science
Record
Identification
Creation 17.11.2015
Last edited 02.09.2017